Wiz Khalifa and Amber Rose are the proud parents of a baby boy. The rapper, 25, and model, 29, welcomed their first child, Sebastian “The Bash” Taylor Thomaz, into the world on Thursday.

The new father took to Twitter to announce his son’s name. “Happy Birthday Sebastian ‘The Bash’ Taylor Thomaz!!!” tweeted Wiz. “Everyone welcome this perfect young man into the world.”

Earlier in the day, the “Black and Yellow” hitmaker posted a photo of himself in the hospital wearing scrubs. “Daddy time,” he wrote.

Wiz is looking forward to fatherhood. “This is the only [job] that I’m really, really focused on right now, being a dad,” he previously said. “I’m a new dad, this my first kid, so I’m trying to be the best.”

Amber came up with their son’s name, which was picked out a while ago. “It’s a total boss name for a boy,” she said. “It’s a normal name, it’s just not common.”